From the RuneScape Wiki, the wiki for all things RuneScape
The
Archaeological expert, Terrance Balando, is a
non-player character at the
Exam Centre who is interested in the historical value of items which might be found there. Players can use items on him and he will tell them if there is any archaeological significance to the item. Players who bring him 3 gold
nuggets will also receive 1
gold ore in return. If you also happen to find a clean
ruby necklace in the
Varrock Museum, you can take it to him to find out how to enchant them.